Most often in March, 24 days.
Highest follower count seen that year: 3,342.
January
Jan 6 18:00–20:00 Jan 19 03:00–04:00 Jan 26 03:00–05:00
February
Feb 2 04:00–05:00 Feb 6 20:00–21:00 Feb 8 02:00–03:00, 20:00–22:00 Feb 9 03:00–04:00, 16:00–17:00 Feb 12 18:00–19:00 Feb 13 19:00–20:00 Feb 14 16:00–18:00, 23:00–24:00 Feb 15 04:00–05:00 Feb 16 15:00–16:00, 23:00–24:00 Feb 17 19:00–20:00 Feb 18 21:00–23:00 Feb 19 17:00–19:00 Feb 20 17:00–19:00 Feb 22 17:00–19:00 Feb 24 02:00–04:00, 18:00–19:00 Feb 25 02:00–04:00 Feb 26 03:00–04:00 Feb 27 18:00–19:00 Feb 28 02:00–03:00
March
Mar 1 03:00–04:00 Mar 2 03:00–06:00, 20:00–21:00 Mar 3 04:00–05:00 Mar 4 03:00–04:00 Mar 6 03:00–04:00, 15:00–16:00 Mar 8 02:00–03:00, 21:00–22:00 Mar 10 02:00–03:00, 19:00–21:00 Mar 11 03:00–04:00 Mar 13 03:00–04:00, 18:00–20:00 Mar 14 02:00–04:00 Mar 15 03:00–04:00 Mar 16 03:00–04:00, 14:00–16:00 Mar 18 01:00–02:00 Mar 19 15:00–16:00 Mar 20 15:00–16:00, 18:00–20:00 Mar 23 18:00–19:00, 23:00–24:00 Mar 24 16:00–17:00 Mar 25 03:00–04:00 Mar 26 16:00–17:00 Mar 27 02:00–03:00, 23:00–24:00 Mar 28 00:00–01:00, 03:00–04:00, 18:00–20:00 Mar 29 18:00–20:00 Mar 30 16:00–18:00, 22:00–23:00 Mar 31 18:00–20:00
April
Apr 1 16:00–17:00 Apr 2 20:00–22:00 Apr 3 16:00–18:00 Apr 4 03:00–04:00, 23:00–24:00 Apr 5 00:00–01:00 Apr 6 21:00–22:00 Apr 8 16:00–17:00 Apr 9 15:00–17:00 Apr 12 20:00–21:00 Apr 13 14:00–16:00 Apr 14 01:00–02:00 Apr 18 02:00–04:00, 18:00–20:00 Apr 23 14:00–16:00 Apr 24 18:00–19:00 Apr 25 18:00–19:00 Apr 26 17:00–18:00 Apr 27 14:00–15:00 Apr 29 17:00–18:00
May
May 1 15:00–16:00 May 2 00:00–02:00, 16:00–18:00 May 3 15:00–19:00 May 4 15:00–16:00, 22:00–23:00 May 7 16:00–17:00 May 8 17:00–19:00 May 9 03:00–04:00, 18:00–19:00 May 10 15:00–18:00 May 14 03:00–04:00, 17:00–18:00 May 15 15:00–16:00 May 17 19:00–21:00 May 20 17:00–19:00 May 26 01:00–03:00 May 27 18:00–19:00 May 28 16:00–18:00
June
Jun 1 18:00–19:00 Jun 2 00:00–04:00 Jun 5 19:00–20:00 Jun 7 18:00–22:00 Jun 9 17:00–19:00 Jun 18 15:00–16:00 Jun 19 18:00–20:00 Jun 20 23:00–24:00 Jun 21 00:00–01:00 Jun 22 02:00–04:00 Jun 26 17:00–18:00 Jun 28 19:00–20:00 Jun 30 03:00–04:00, 22:00–23:00
July
Jul 1 03:00–05:00 Jul 2 16:00–17:00 Jul 3 16:00–17:00 Jul 5 17:00–18:00 Jul 6 02:00–03:00, 19:00–24:00 Jul 7 02:00–03:00 Jul 15 18:00–20:00 Jul 16 23:00–24:00 Jul 17 15:00–18:00 Jul 18 19:00–20:00 Jul 19 16:00–17:00 Jul 21 02:00–04:00 Jul 23 14:00–15:00 Jul 25 13:00–14:00 Jul 26 15:00–16:00 Jul 27 02:00–04:00, 17:00–20:00 Jul 28 21:00–23:00 Jul 31 21:00–24:00
August
Aug 1 21:00–22:00 Aug 2 05:00–06:00 Aug 3 20:00–22:00 Aug 4 02:00–04:00, 20:00–22:00 Aug 5 15:00–16:00 Aug 6 15:00–19:00 Aug 7 03:00–04:00 Aug 12 16:00–18:00 Aug 13 18:00–19:00 Aug 15 18:00–20:00 Aug 16 05:00–06:00 Aug 18 02:00–03:00 Aug 19 18:00–19:00 Aug 21 04:00–06:00, 14:00–16:00 Aug 22 23:00–24:00 Aug 24 00:00–01:00, 21:00–23:00 Aug 28 17:00–19:00 Aug 31 00:00–01:00, 20:00–22:00
September
Sep 2 17:00–18:00 Sep 7 04:00–05:00 Sep 12 00:00–01:00 Sep 13 19:00–20:00 Sep 15 01:00–05:00 Sep 18 03:00–04:00 Sep 19 01:00–03:00 Sep 23 02:00–03:00 Sep 25 18:00–19:00 Sep 26 18:00–19:00 Sep 28 02:00–04:00
October
Oct 1 18:00–19:00 Oct 2 18:00–20:00 Oct 3 03:00–04:00 Oct 4 16:00–17:00 Oct 6 03:00–04:00, 16:00–18:00, 23:00–24:00 Oct 8 15:00–17:00 Oct 10 03:00–04:00 Oct 11 02:00–03:00 Oct 14 03:00–04:00 Oct 16 20:00–22:00 Oct 18 02:00–03:00 Oct 19 17:00–18:00 Oct 20 03:00–04:00 Oct 24 18:00–19:00 Oct 25 16:00–17:00 Oct 26 06:00–07:00 Oct 27 02:00–03:00, 23:00–24:00 Oct 28 03:00–04:00, 18:00–19:00 Oct 29 16:00–17:00 Oct 30 16:00–17:00 Oct 31 18:00–20:00
November
Nov 1 02:00–03:00, 17:00–18:00 Nov 2 17:00–18:00 Nov 3 03:00–04:00, 21:00–22:00 Nov 4 02:00–04:00, 15:00–18:00 Nov 6 17:00–19:00 Nov 9 18:00–19:00 Nov 11 03:00–05:00, 17:00–19:00 Nov 12 02:00–03:00, 16:00–17:00 Nov 13 18:00–19:00 Nov 14 18:00–19:00 Nov 15 15:00–19:00 Nov 16 03:00–04:00 Nov 18 17:00–18:00 Nov 19 16:00–17:00 Nov 20 03:00–04:00, 18:00–19:00 Nov 21 21:00–22:00 Nov 23 19:00–21:00 Nov 24 19:00–20:00 Nov 25 15:00–19:00 Nov 26 03:00–04:00 Nov 27 15:00–17:00 Nov 30 01:00–03:00, 05:00–06:00
December
Dec 1 02:00–03:00 Dec 2 16:00–17:00 Dec 5 20:00–21:00 Dec 6 17:00–18:00 Dec 7 18:00–20:00 Dec 8 02:00–03:00, 18:00–20:00 Dec 9 18:00–20:00 Dec 10 03:00–04:00 Dec 14 22:00–24:00 Dec 16 00:00–02:00 Dec 17 15:00–17:00 Dec 18 19:00–20:00 Dec 19 19:00–21:00 Dec 21 22:00–23:00 Dec 22 02:00–04:00 Dec 31 05:00–06:00